Can't you edit the names and the attributes of all the players of the ancillary international teams?
WHAT I MEAN is suppose somebody wanted to rename the players of a team to: Qadir, Warne, Bradman, Akram etc. to make a "Modern Pakistan & Australian Legends Combined!" themed team... they could as long as they were content to let that team be under a name like Fiji or Afghanistan, yes XD?
And perhaps even THAT can be edited with Hex editor.
Isn't that what they are for? I mean there are 50-something teams from a bunch of nations but they are all blank; if the developers (understandably so, of course) weren't going to waste time making fake names for each minor nation (instead using "player one/two/etc", surely the player attributes are also just random junk?
Then it follows that those were put there for you to make your own players/teams?
Editing the names of the test-playing nations is also very simple with a Hex editor, but that has already been done for us =D